A year ago they would have called you crazy. Today, wearing a modified space helmet on an airplane or subway makes you the person to envy. Masks are everywhere but rocking mission-to-Mars-level ...
As researchers worldwide clash on the effectiveness of masks, a Canadian inventor of a $379 COVID-19 helmet, Yezin Al-Qaysi, thinks he might have the solution. A Danish study published November 18 ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback